[1]ZHANG Yi,LI Peng,LIU Xiaojun,et al.Water Holding Capacity of Litter with Different Vegetation Types in the Loess Hilly Region[J].Research of Soil and Water Conservation,2016,23(05):100-105.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 05
Page number:
100-105
Column:
Public date:
2016-10-28
- Title:
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Water Holding Capacity of Litter with Different Vegetation Types in the Loess Hilly Region
- Author(s):
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ZHANG Yi1, LI Peng1, LIU Xiaojun2, REN Zongping1, MA Tiantian1, ZHAO Binhua1, XU Guoce1
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1. State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, China;
2. State Key Laboratory of Soil Erosion and Dry-land Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China
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- Keywords:
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Loess Hilly Region; litter amount; water holding capacity; water absorption rate
- CLC:
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TV121+.2
- DOI:
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- Abstract:
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The amount, water holding capacity and water absorption rate of litter with 5 different types of grain to green vegetation in Wangmaogou region were analyzed in submerging test. The results showed that: (1) The order of the litter amount of the 5 vegetation types is: Malus pumila Mill. (MP) > Pinus tabulaeformis Carr. (PT) > Bothriochloa ischaemumis (BI) > Armeniaca vulgaris Lam. (AV) > Ulmus pumila L. (UP). There is a logarithmic relationship between litter layer depth and amount: y=4.55ln(x)-8.74(R2=0.8), and exponential relationship for amount and water storage of litter: y=0.69e0.22x(R2=0.7). (2) The maximum water holding capacity of litter layer ranged from 1.57 mm to 5.79 mm while the effective holding capacity ranged from 0.89 mm to 3.02 mm. The order of the effective holding capacity is: MP > PT > BI > AV > UP.(3) The change trends of water absorption rate of litter among different vegetation were similar. It plummeted down within the first 2 hours, and then reached 0 at almost 24 hours later when the maximum water holding capacity appeared. Study on water capacity of litter with different vegetation types layer could provide a theoretical basis and technological support to solve the ecological water shortage and soil erosion prevention in the Loess Plateau.